35 should be ok, Sal and 32 should also be ok. Too soft and you won't recover from turns, bumps, etc as quickly. Also the wider the tire you have is, the less it is going to match the design of your front end and the worse your handling will be.
Now here is something I found interesting in one of the shop manuals I have last night. This is for the 48-51 years and the book was created by and copyrighted by The Chevrolet Division of General Motors in 1950. When you look at this scanned drawing you may see at least 3 interesting things: 1. The angle the drag link should be sitting at is shown, but is ignored by the remainder of the illustration. 2. The drag link sits at an exaggerated angle leaning upward from the pitman arm to the steering arm. 3. The springs are shown as being shackled at the rear. This obviously isn't correct.
Granted this drawing is to serve as an example for caster angle, but what was this technical writer thinking (or drinking) when they put this in and why go ahead and draw the correct line for the drag link? The correct number of leaves in the spring are shown, and the spring is shown at the correct arc. Just a little puzzling in light of the last 7 pages of discussion...
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end